diff --git a/book/Rust 程序设计语言 简体中文版.pdf b/book/Rust 程序设计语言 简体中文版.pdf
new file mode 100644
index 0000000..6010030
Binary files /dev/null and b/book/Rust 程序设计语言 简体中文版.pdf differ
diff --git a/code/world_hello/Cargo.lock b/code/world_hello/Cargo.lock
new file mode 100644
index 0000000..2412271
--- /dev/null
+++ b/code/world_hello/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "world_hello"
+version = "0.1.0"
diff --git a/code/world_hello/Cargo.toml b/code/world_hello/Cargo.toml
new file mode 100644
index 0000000..ea79d1a
--- /dev/null
+++ b/code/world_hello/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "world_hello"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/code/world_hello/src/main.rs b/code/world_hello/src/main.rs
new file mode 100644
index 0000000..5ff9e87
--- /dev/null
+++ b/code/world_hello/src/main.rs
@@ -0,0 +1,13 @@
+fn greet_world() {
+    let southern_germany = "Grüß Gott!";
+    let chinese = "世界，你好";
+    let english = "World, hello";
+    let regions = [southern_germany, chinese, english];
+    for region in regions.iter() {
+        println!("{}", &region);
+    }
+}
+
+fn main() {
+    greet_world();
+}
\ No newline at end of file